Rate-splitting multiple access for discrete memoryless channels

  • Authors:
  • A. J. Grant;B. Rimoldi;R. L. Urbanke;P. A. Whiting

  • Affiliations:
  • Inst. for Telecommun. Res., Univ. of South Australia, Mawson Lakes, SA;-;-;-

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2006

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Abstract

It is shown that the encoding/decoding problem for any asynchronous M-user discrete memoryless multiple-access channel can be reduced to corresponding problems for at most 2M-1 single-user discrete memoryless channels. This result, which extends a similar result for Gaussian channels, reduces the seemingly hard task of finding good multiple-access codes to the much better understood task of finding good codes for single-user channels. As a by-product, some interesting properties of the capacity region of M-user asynchronous discrete memoryless channels are derived